Conversion From SQL Server to Oracle.. Just New pls someone help

Question

I am new to Oracle 11g and badly need the conversion of SQL Server Functions to Oracle.. Sample Pasted Code not working .. end with error.. pls help
Create Table TempT (ID1 Varchar (10),
     ID2 Varchar (10)
CREATE OR REPLACE PACKAGE GLOBALPKG
AS
     TYPE RCT1 IS REF CURSOR;
     TRANCOUNT INTEGER := 0;
     IDENTITY INTEGER;
END;
CREATE OR REPLACE FUNCTION fTempT
     i IN      VARCHAR2 DEFAULT NULL
RETURN GLOBALPKG.RCT1
IS
REFCURSOR      GLOBALPKG.RCT1;
BEGIN
OPEN REFCURSOR FOR
     SELECT TT.*
FROM TempT TT
WHERE     (fTempT.i = ''
OR     TT.ID1 = fTempT.i)
RETURN REFCURSOR;
END;
CREATE OR REPLACE FUNCTION fTempTF
     i IN      VARCHAR2 DEFAULT NULL
RETURN GLOBALPKG.RCT1
IS
REFCURSOR      GLOBALPKG.RCT1;
BEGIN
OPEN REFCURSOR FOR
     SELECT *
FROM TABLE(fTempT(i))
RETURN REFCURSOR;
END;
LAST FUNCTION ENDs WITH ERROR
Error(13,7): PL/SQL: ORA-22905: cannot access rows from a non-nested table item

Answer 1

I assume this is a simplified version of a more complex problem, since your second function would not return anything more than the first. If you want to use TABLE on a ref cursor, then you need to do some sort of intermediary transformation, such as using a pipelined function, as in the example in the link below. Also, this does not appear to have anything to do with objects, so should be posted in the SQL and PL/SQL forum instead.
http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28370/tuning.htm#BABHAABE